Each one has its place. Floor jack is tops, but i ain't hauling it around.
A hydraulic bottle jack will have the most power for its size, but somewhat limited range. It can be hard to get a bottle jack under a trailer axle
(or hub in the case of a torsion axle).
Scissor jack wins for takealong duty. Lightweight, great range, doesn't leak oil... Dirt simple. Not what you'd want to use at home in the shop, just the best compromise IF you need a jack in the field.
There's only one better answer:
Your tow vehicle's jack. If it will serve to lift your camper, why tote more. My 4runner has a manual screw jack similar to what was used in GM light
trucks for decades. I made sure it would work on the Trillium
and then crossed jack off my list. (Lug wrench matches too! ;-)